Self Diagnostic Units

Self Diagnostic Units - click to enlargeSelf Diagnostic Units
The self-testing/self-diagnostic system controls test parameters to verify that all system components are functioning properly. This is accomplished using various system checks on a continuous basis, as well as hourly and monthly test.

Several manual tests can also be initiated or cancelled at any time by pressing the test switch. During automatic self-test or manual test, the green AC status indicator will flash at a rate of once per second. Any malfunction is immediately reported via the appropriate external indicators.

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